It's not just the Wii that Nintendo is releasing in Europe on December 8, but also the Nintendo MP3 Player for the Nintendo DS, GBA and Game Boy Micro The device transforms your Nintendo handheld into a fully fledged MP3 player, and provides easy to use track selection and on-screen song info.
The cart accepts SD memory cards which once loaded with MP3s can be easily inserted into the cart. The cart is then plugged into the Game Boy Advance port on the handheld and you're ready to listen to your music.
The Nintendo MP3 Player will retail for around £20 and goes on sale across Europe on December 8. You'll have to purchase an SD card separately as Nintendo isn't bundling one with the player, but a 2GB card can be bought for less than £20.